In order to explore the influences of rubber particles and basalt fibers after interaction and coupling on the mechanical properties of concreteconsidering the three main factors of rubber volume contentbasalt fiber volume content and basalt fiber lengththe influences of these factors on basalt rubber concrete were studied through compressive strengthaxial compressive strengthsplitting tensile strength and flexural strength tests. The results indicate that the increase of rubber content reduces the mechanical properties of concretebut improves its deformation ability and reduces its brittleness. The addition of basalt fibers improves the mechanical strength of concretebut when the content is too highexcept for the tensile strengthall other strength decreases. Comprehensive analysis shows that when the rubber volume content is 10%the basalt fiber volume content is 0.10% and the basalt fiber length is 18 mmthe mechanical properties of concrete are optimal. Based on the analysis of the compressive stress-strain curvesa compressive stress-strain constitutive model for basalt rubber concrete is proposedwhich can be used as a reference for nonlinear analysis and engineering design of basalt rubber concrete components.